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-rw-r--r--tests/expr.test33
1 files changed, 32 insertions, 1 deletions
diff --git a/tests/expr.test b/tests/expr.test
index 1928a84..6fa2129 100644
--- a/tests/expr.test
+++ b/tests/expr.test
@@ -10,7 +10,7 @@
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
-# RCS: @(#) $Id: expr.test,v 1.17.2.8 2005/08/29 17:56:22 kennykb Exp $
+# RCS: @(#) $Id: expr.test,v 1.17.2.9 2005/10/28 03:26:32 mdejong Exp $
if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest
@@ -899,6 +899,37 @@ test expr-46.12 {round() boundary case - -1/2 + 1 ulp} {
expr {round($x)}
} 0
+test expr-46.13 {round() boundary case - largest int} {
+ set imax [expr {((1<<31) + 1) * -1}]
+ expr {round($imax - 0.51)}
+} 2147483646
+
+test expr-46.14 {round() boundary case - largest int} {
+ set imax [expr {((1<<31) + 1) * -1}]
+ expr {round($imax - 0.50)}
+} 2147483647
+
+test expr-46.15 {round() boundary case - becomes wide int} {
+ set imax [expr {((1<<31) + 1) * -1}]
+ expr {round($imax + 0.50)}
+} 2147483648
+
+test expr-46.16 {round() boundary case - smallest int} {
+ set imin [expr {1<<31}]
+ expr {round($imin + 0.51)}
+} -2147483647
+
+test expr-46.17 {round() boundary case - smallest int} {
+ set imin [expr {1<<31}]
+ expr {round($imin + 0.50)}
+} -2147483648
+
+test expr-46.18 {round() boundary case - becomes wide int} {
+ set imin [expr {1<<31}]
+ expr {round($imin - 0.50)}
+} -2147483649
+
+
# cleanup
if {[info exists a]} {
unset a